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Groups > linux.kernel > #1556842

Re: Support Intel uncore event lists v4

From Jiri Olsa <jolsa@redhat.com>
Newsgroups linux.kernel
Subject Re: Support Intel uncore event lists v4
Date 2017-01-11 20:00 +0100
Message-ID <sYwhP-21a-1@gated-at.bofh.it> (permalink)
References <sXTzQ-39s-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Jan 09, 2017 at 05:33:26PM -0800, Andi Kleen wrote:
> This adds uncore support on top of the recently merged JSON event list
> infrastructure for core events. Uncore is everything outside the core,
> including memory controllers, PCI, interconnect etc.
> 
> Uncore is more complicated to handle than core events because it uses
> many duplicated PMUs, which leads to long event lists and verbose duplicated
> outputs. 
> 
> In fact previously it was nearly unusable for many cases without special 
> tools to generate event list and aggregate data (such as 
> https://github.com/andikleen/pmu-tools/tree/master/ucevent)
> 
> With this patchkit we add:
> - Basic support for uncore events in JSON events
> - Support aliases that get duplicated over many PMUs transparently
> - Support summing up duplicated PMUs per socket
> - Support extending the perf stat builtin metrics with simple expressions
> specified in the event list.
> 
> So far mainly servers are supported. Also this is not using full event lists
> (which are full of very obscure events) but only for a smaller subset of
> curated useful and understandable metrics.
> 
> The actual event lists are not posted, but available at
> git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc perf/intel-uncore-json-files-3
> 
> The code is available here
> git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc perf/builtin-json-22
> 
> v1: Initial post
> v2: Address review feedback. See changelog in commits.
> v3: Repost. Rebase to latest tree.
> v4: Rebase. Change DividedBy to generic simple expression parser.
> Fix refactoring problem that broke git bisect.
> Address review feedback.
>

what's the difference to the post from Jan 03?

jirka

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Thread

Support Intel uncore event lists v4 Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 10/11] perf, tools: Support MetricExpr header in JSON event list Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 07/11] perf, tools: Collapse identically named events in perf stat Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 01/11] perf, tools: Factor out scale conversion code Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 09/11] perf, tools: Add a simple expression parser for JSON Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 02/11] perf, tools: Parse eventcode as number in jevents Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 05/11] perf, tools: Support event aliases for non cpu// pmus Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 03/11] perf, tools: Add support for parsing uncore json files Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 08/11] perf, tools: Expand PMU events by prefix match Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  [PATCH 11/11] perf, tools, stat: Output JSON MetricExpr metric Andi Kleen <andi@firstfloor.org> - 2017-01-10 02:40 +0100
  Re: Support Intel uncore event lists v4 Jiri Olsa <jolsa@redhat.com> - 2017-01-11 20:00 +0100
    Re: Support Intel uncore event lists v4 Andi Kleen <andi@firstfloor.org> - 2017-01-11 21:00 +0100
      Re: Support Intel uncore event lists v4 Jiri Olsa <jolsa@redhat.com> - 2017-01-11 22:50 +0100
        Re: Support Intel uncore event lists v4 Andi Kleen <andi@firstfloor.org> - 2017-01-11 23:00 +0100
          Re: Support Intel uncore event lists v4 Jiri Olsa <jolsa@redhat.com> - 2017-01-12 13:20 +0100
            Re: Support Intel uncore event lists v4 Andi Kleen <andi@firstfloor.org> - 2017-01-12 18:20 +0100

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